44 THE FISHES OF OHIO. 



Genus : Chrosomus. 



Chrosomus erythrogaster Rafinesque. Red-belued Dace. 



Head 4; depth 4; eye 3%. D. 8; A. 8; teeth 5-5; scales 16-S5-10. 

 Body rather elongate, the head pointed; mouth small, terminal, somewhat 

 oblique. Lateral line developed backward about as far as the dorsal fin. 

 Color above, brownish; a black vertebral line, bordered on either side by a 

 row of black dots; sides creamy white, bordered above and below with a 

 black band, the lower the wider and extending forward through eye; under 

 parts white, in breeding males entirely suffused with vermillion; fins all 

 bright sulphur yellow, the dorsal with a bright red spot at its base, anteriorly; 

 females and young less brilliantly colored. Length 2 to 3 inches. 



The Red-bellied Dace is widely distributed and is generally 

 abundant where found, but it is strictly a " brook species," being 

 confined to small clear streams and spring runs. Recorded for 

 the state by Dr. Kirtland ; Lorain County, " I have found them 

 in but one stream, Spring brook," McCormick, 1892 ; " collected 

 by Prof. Meek in Lost creek, near Defiance," Kirsch, 1893 ; 

 Franklin County, Grant's Run and Plum Run, tributaries of the 

 Scioto river, in abundance, Williamson and Osburn, 1897 > Knox 

 County, Parker's Run, a tributary of Big Jelloway creek, "in 

 considerable numbers," Parker, Williamson and Osburn, 1898 ; 

 Licking County, occurring in abundance in spring runs tributary 

 to North Fork of Licking river near Newark, R. C. Osburn, 1899; 

 Niggermill Run at Salem, E. B. Williamson, 1900. 



Genus: Hybognathus. 



Hybognathus nuchalis Agassiz. Silvery Minnow. 



Head 4^ to 5; depth 4^; eye 4; D. 8; A. 7; teeth 4-4; scales 5-38-4. 

 Body elongate, comparatively slender. Head moderate, the profile evenly 

 curved; upper jaw heavy, lower thin. Scales large and silvery, 12 to 14 in 

 front of dorsal. Lateral line decurved. Intestines very long, 7 to 10 times 

 the length of bod)^. Color olivaceous green above, translucent in life; sides 

 clear silvery; fins plain. Length 4 to 7 inches. 



This species seems to be confined to the southwestern part of 

 the state. Jordan, in his Ohio Report, gives it as abundant in 

 small streams flowing into the Ohio river, but Dr. Henshall 

 records it for only White Oak creek and the Ohio river, and in 

 my work at Ironton and Bellaire I failed to find it. This species 

 is not mentioned by any other collector. 



